What is it with hosting firms being stonewalled by Microsoft? Now it's Ionos on naughty step

Email issues dog the company formerly known as 1&1

Ionos, the hosting company formerly known as 1&1, has found itself on Microsoft's naughty list as emails from its servers won't reach Outlook.com accounts.…

via The Register - Data Centre: Cloud
http://go.theregister.com/feed/www.theregister.co.uk/2019/08/22/ionos_outlookcom_email_issues/